<template>
	<view>
		<view class="goods-item">
			<!-- 商品左侧图片 -->
			<view class="goods-item-left">
				<radio :checked="goods.goods_state" color="#384AE0 " v-if="showRadio" @click="radioClickHandle"></radio>
				<image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
			</view>
			<!-- 商品右侧信息区域 -->
			<view class="goods-item-right">
				<!-- 商品标题 -->
				<view class="goods-name">
					{{goods.goods_name}}
				</view>
				<view class="goods-info-box">
					<!-- 商品价格 -->
					<view class="goods-price">
						${{goods.goods_price | tofixed}}
					</view>
					<!-- 商品数量 -->
					<uni-number-box :min="1" :value="goods.goods_count" v-if="showNum" @change="numChangeHandler"></uni-number-box>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name:"my-goods",
		// 定义props属性，用来接收外界传递到当前组件地数据
		props:{
			// 商品地信息对象
			goods:{
				type:Object,
				default:{}
			},
			// 是否展示图片左侧地radio
			showRadio:{
				type:Boolean,
				// 如果外界没有指定show-radio属性地值。则默认不展示radio组件
				default:false,
			},
			// 是否展示价格右侧地NumBerBox组件
			showNum:{
				type:Boolean,
				default:false
			}
		},
		// 把数字处理为1带两位小数点的数字
		filters:{
			tofixed(num){
				return Number(num).toFixed(2)
			}
		},
		data() {
			return {
				defaultPic:'无法加载'			
			};
		},
		methods:{
			radioClickHandle(){
				// 通过this.$emit()触发外界通过@绑定地radio-change事件
				// 同时把商品地ID和勾选状态作为参数传递给radio-change事件处理函数
				this.$emit('radio-change',{
					// 商品地id
					goods_id:this.goods.goods_id,
					// 商品最新地勾选状态
					goods_state:!this.goods.goods_state
				})
			},
			numChangeHandler(val){
				this.$emit('num-change',{
					// 商品地id
					goods_id:this.goods.goods_id,
					// 商品地最新数量
					goods_count:+val
				})
			}
		}
	}
</script>

<style lang="scss">
.goods-item{
	display: flex;
	padding: 10px 5px;
	border-bottom: 1px solid #fofofo;
	// radio勾选框
	.goods-item-left{
		margin-right: 5px;
		display: flex;
		justify-content: space-between;
		align-items: center;
		.goods-pic{
			width: 100px;
			height: 100px;
			display: block;
		}
	}


.goods-item-right{
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	.goods-name{
		font-size: 13px;
	}
	
	.goods-info-box{
		display: flex;
		justify-content: space-between;
		align-items: center;
		.goods-price{
			color:#C00000;
			font-size: 16px;
		}
		}
	}
}
</style>